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KVM: x86: simplify handling of PKRU
[karo-tx-linux.git] / arch / x86 / include / asm / pgtable-3level_types.h
1 #ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
2 #define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
3
4 #ifndef __ASSEMBLY__
5 #include <linux/types.h>
6
7 typedef u64     pteval_t;
8 typedef u64     pmdval_t;
9 typedef u64     pudval_t;
10 typedef u64     p4dval_t;
11 typedef u64     pgdval_t;
12 typedef u64     pgprotval_t;
13
14 typedef union {
15         struct {
16                 unsigned long pte_low, pte_high;
17         };
18         pteval_t pte;
19 } pte_t;
20 #endif  /* !__ASSEMBLY__ */
21
22 #ifdef CONFIG_PARAVIRT
23 #define SHARED_KERNEL_PMD       (pv_info.shared_kernel_pmd)
24 #else
25 #define SHARED_KERNEL_PMD       1
26 #endif
27
28 /*
29  * PGDIR_SHIFT determines what a top-level page table entry can map
30  */
31 #define PGDIR_SHIFT     30
32 #define PTRS_PER_PGD    4
33
34 /*
35  * PMD_SHIFT determines the size of the area a middle-level
36  * page table can map
37  */
38 #define PMD_SHIFT       21
39 #define PTRS_PER_PMD    512
40
41 /*
42  * entries per page directory level
43  */
44 #define PTRS_PER_PTE    512
45
46
47 #endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */